Seeing as this is also a noun, I really think you should spell it right, otherwise it looks just as silly as someone spelling 'boy' as ''boi''. This spelling is far too cutesy and immature, but it looks like crap, so it's not actually cute.

As a person who knows a decent amount of French (though I'm by no means fluent), this name looks like it should be pronounced ZHWAH, not JOY. And since it's missing an 'e', it also looks masculine--if you still have the French mindset.Wow, this is bad.